/*
 * Copyright 2008-2010 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */
package com.rcmd.cmd;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;

public class WireIO {

	private WireIO() {
	}

	public static Command read(ObjectInput in) throws IOException {
		byte type = in.readByte();
		Command cmd;
		switch (type) {
		case Command.CMDCOMMAND:
			cmd = new CMDCommand();
			break;
		case Command.DATA:
			cmd = new DataCommand();
			break ;
		case Command.FILE:
			cmd = new FileCommand();
			break ;
		case Command.FILEDATA:
			cmd = new FileDataCommand();
			break;
		case Command.ERROR:
			cmd = new ErrorCommand();
			break;
		case Command.INIT :
			cmd = new InitCommand();
			break ;
		default:
			throw new RuntimeException("invalid command: " + type);
		}
		try {
			cmd.read(in);
		} catch (ClassNotFoundException cnfe) {
			throw new IOException(cnfe);
		}
		return cmd;
	}

	public static void write(ObjectOutput out, Command cmd) throws IOException {
		out.writeByte(cmd.getType());
		cmd.write(out);
		out.flush();
	}
}
